/*gotop*/
.rGotop {
    position: fixed;
    _position: absolute;
    z-index: 998;
    left: 50%;
    bottom: 20px;
    _bottom: auto;
    margin-left: 500px;
    width: 50px;
    height: 50px;
    overflow: hidden;
    background: #000;
    font-size: 20px;
    line-height: 50px;
    color: #eee;
    text-align: center;
    opacity: 0.3;
    filter: alpha(opacity=30);
    display: none;
    -webkit-transition: all 0.2s linear;
}
.rGotop:hover {
    color: #fff;
    text-decoration: none;
    opacity: 0.8;
    filter: alpha(opacity=80);
}
.rGotop.rit {
    left: auto;
    right: 20px;
    bottom: 20px;
    _bottom: auto;
}